CN110824472A - Ground penetrating radar auxiliary device and using method thereof - Google Patents

Abstract

The invention discloses a ground penetrating radar auxiliary device and a using method, comprising a foldable portable trolley and a working board; the foldable portable trolley is used to support the upper working board; on the working board with a predetermined area, Install at least two pairs of fixing bars on the work board along the required direction, each pair of fixing bars is provided with a base, and each base is vertically provided with a first support rod, the first support rod is The top is provided with a rotating seat that can rotate 360 degrees in the horizontal plane, a rotating wheel is arranged on the rotating seat, and the axis of the support shaft of the rotating wheel is perpendicular to the axis of the first support rod; The rotating wheel is provided with a wheel groove, the wheel grooves of the two rotating wheels jointly support an antenna support rod, the antenna support rod can slide freely in the wheel groove, and the end of the antenna support rod is installed with a geological radar antenna .

Description

A kind of ground penetrating radar auxiliary device and using method thereof

technical field

The invention relates to the field of tunnel lining quality detection, in particular to a ground penetrating radar auxiliary device and a method for using the same.

Background technique

As we all know, after the tunnel construction is completed, the quality inspection of the tunnel lining is required to check its construction quality. The traditional detection method of quality-detecting radar is usually that the inspector stands at a high place and then lifts the radar antenna manually. This method cannot ensure that the radar antenna is closely attached to the lining surface, which affects the accuracy of the detection results, and the lifting is carried out for a long time. It will lead to physical exhaustion of the inspectors, and the assistance of multiple inspectors is required, resulting in a waste of human resources, and it is not easy to carry out detection work when encountering obstacles, and the inspectors stand at a high place, and the work has a certain degree of danger.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the shortcomings and deficiencies of the existing technical conditions, and to provide a quality detection radar auxiliary device and a method for using the same, so as to improve the efficiency, accuracy and safety of tunnel lining detection.

In order to achieve the above object, the present invention adopts the following technical solutions:

In a first aspect, the present invention provides a ground penetrating radar auxiliary device, comprising a foldable portable trolley and a working board; the foldable portable trolley is used to support the upper working board; on the working board with a predetermined area , install at least two pairs of fixing bars on the work board along the required direction, each pair of fixing bars is provided with a base, and a first support rod is vertically arranged on each base, the first support rod The top is provided with a rotating seat that can rotate 360 degrees in the horizontal plane, a rotating wheel is arranged on the rotating seat, and the axis of the supporting shaft of the rotating wheel is perpendicular to the axis of the first support rod; The rotating wheel is provided with a wheel groove, the wheel grooves of the two rotating wheels jointly support an antenna support rod, the antenna support rod can slide freely in the wheel groove, and the end of the antenna support rod is installed with a geological radar antenna.

As a further technical solution, the base is provided with a hydraulic drive device, the bottom of the first support rod is connected with the hydraulic drive device, and the height of the first support rod is adjusted by the hydraulic drive device.

As a further technical solution, the fixing bar is an "L"-shaped steel plate with a predetermined length, and the fixing bar has a plurality of slits formed along the longitudinal direction, so as to facilitate fixing the base of the support rod with bolts.

As a further technical solution, both ends of the fixing strip are fixed on the work board by fixing devices.

As a further technical solution, the bottom surface of the ground penetrating radar antenna is provided with an angle adjustment sheet, and the angle adjustment sheet is provided with a plurality of angle adjustment holes.

As a further technical solution, the assembly end of the antenna support rod is formed with a fastening hole matching the angle adjustment hole, and the ground penetrating radar antenna and the antenna support rod are tightly connected by screws.

In a second aspect, the present invention also provides a method for using the above-mentioned ground penetrating radar auxiliary device, comprising the following steps:

1) Move the GPR trolley to the detection position;

2) Fix the ground penetrating radar antenna on the antenna support rod;

3) Connect the ground penetrating radar antenna with the host using the connecting line;

4) Adjust the position of the support rod base on the fixed strip;

5) Adjust the direction of the ground penetrating radar antenna support rod;

6) Begin to test the tunnel lining.

The beneficial effects of the present invention are:

1. The overall structure of the present invention is simple, easy to assemble and transport, convenient for measurement, and the measurement work can be carried out with less manpower, which improves the work efficiency.

2. The design of the antenna support rod and the rotating wheel of the present invention utilizes the lever principle, so that the operator can tow the heavy-weight geological radar antenna in a stable and comfortable posture, and at the same time, by setting the angle adjustment sheet on the bottom surface of the ground penetrating radar antenna. , The angle adjustment sheet is provided with a plurality of angle adjustment holes, which can accurately detect the tunnel lining structure and adjust the direction at the same time, ensuring the accuracy of the measurement results.

3. The operator can directly grasp the antenna support rod equipped with the ground penetrating radar antenna to carry out the tunnel lining inspection work to ensure safe operation.

4. Through the design of the lifting device of the foldable portable trolley and the design of the hydraulic drive device, the height of the entire antenna support rod can be adjusted according to the actual height to adapt to different sizes of tunnel detection.

5. The position of the first support rod is adjusted by designing a plurality of slits on the fixing strip, thereby realizing the position adjustment of the antenna support rod of the ground penetrating radar antenna, thereby realizing the position adjustment of the ground penetrating radar antenna.

Description of drawings

The accompanying drawings that form a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute improper limitations on the present application.

Figure 1 is a schematic diagram of the overall structure of the present invention.

Figure 2 is a schematic view of the structure of the rotating support rod of the present invention.

3 is a schematic structural diagram of the combination of the base of the rotating support rod and the hydraulic drive device of the present invention;

FIG. 4 is a schematic diagram of the connection structure of the ground penetrating radar antenna according to the present invention.

FIG. 5 is a schematic structural diagram of an antenna support rod.

Figure 6 is a schematic view of the tunnel lining detection work of the present invention.

In order to show the position of each part, the mutual distance or size is exaggerated, and the schematic diagram is for illustration only. The symbols in the drawings are as follows: work plate 1, fixing strip 2, fixing device 3, fixing part 3-1, bolt 3-2, support rod base 4, rotating support rod 5, rotating wheel 5-1, support rod 5-2 , Antenna support rod 6, foldable portable car 7, ground penetrating radar antenna 8, fastening hole 9, angle adjustment sheet 10.

Detailed ways

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The present invention will be further described below in conjunction with the accompanying drawings by way of embodiments, but the present invention is not limited to the scope of the described embodiments.

As shown in FIG. 1, a geological radar auxiliary device includes a working plate 1, a fixing bar 2, a fixing device 3, a support rod base 4, a rotating support rod 5 (the first support rod described above), and an antenna support rod 6 , foldable portable trolley 7;

The foldable portable trolley 7 is an existing trolley, which includes a vehicle body, a lifting frame is arranged on the vehicle body, and the working board 1 is installed on the top of the lifting frame; the structure of the foldable portable trolley 7 Simple, easy to transport, and its height can be adjusted according to the height of the place to be tested.

Two pairs of the fixing bars 2 are installed on the work plate 1 along the desired direction. The fixing bars 2 are "L"-shaped steel plates with a predetermined length. The fixing bars 2 have a plurality of slits formed along the longitudinal direction, which are convenient for fixing the support rods with bolts. The base 4; the two ends of the fixing strip 2 are fixed on the working board 1 through the fixing device.

As shown in FIG. 3 , the support rod base 4 is a rectangular plate with threaded holes on both sides. The screws pass through the threaded holes to install the support rod base 4 between a pair of fixing bars 2; in this embodiment, the support rod The base 4 includes two, one of which is installed on one pair of fixing bars 2 and the other one is installed on the other pair of fixing bars 2 .

The fixing device 3 includes a fixing part 3-1 and a bolt 3-2; the fixing part 3-1 is in close contact with both ends of the fixing bar 2; The support rod base 4 is fixed between a pair of fixing bars 2 by screws, and the position of the support rod base 4 can be adjusted according to actual needs to make it easy to measure.

As shown in FIG. 2 , a schematic diagram of the structure of the rotating support rod 5, two rotating support rods 5 are provided, which are respectively installed on the support rod base 4; each rotating support rod 5 includes a rotating wheel 5-1 and a support rod 5- 2; the support rod 5-2 is inserted into the support rod base 4, the upper end of the support rod 5-2 is provided with a rotatable rotating base, and the rotating base can rotate 360 degrees clockwise or counterclockwise along the axis of the support rod 5-2, so that The purpose of the design is mainly to realize the azimuth adjustment of the antenna support rod 6 in space; the reason why it is only designed to rotate the base to rotate instead of the rotation of the entire support rod 5-2 is mainly to consider that in actual operation, if the operator pushes the entire It takes a lot of effort to rotate the support rod, but if you just push the support rod to rotate, you can easily rotate the rotating base with only a small force, thereby realizing the azimuth adjustment of the antenna support rod.

The rotating wheel 5-1 is installed on the rotating base, and the axis of the supporting shaft of the rotating wheel 5-1 and the axis of the supporting rod are perpendicular to each other, corresponding to the horizontal arrangement in Fig. 1; the supporting shaft is fixed above the rotating base through the auxiliary bracket, and the rotating The wheel can be rotated relative to the support shaft, and a wheel groove is provided on the circumferential surface of the rotating wheel. The antenna support rod 6 can be installed in the wheel groove, and the antenna support rod 6 can freely slide back and forth in the wheel grooves of the two rotating wheels to prevent Adapt to the change of the side wall angle of the tunnel, making the data measurement more accurate; at the same time, when encountering obstacles, the antenna support rod can be lowered.

As shown in Figure 3, a height-adjustable hydraulic drive device structure is provided on the support rod base 4, and the bottom of the rotating support rod 5 is connected to the hydraulic drive device structure. By adjusting the height of the hydraulic drive device, the entire antenna can be realized The height adjustment of the support rod 6; in the height adjustment of the whole device, the foldable portable trolley 7 is equivalent to rough adjustment in height, and the structure of the hydraulic drive device is equivalent to fine adjustment to adapt to different sizes of tunnels.

As shown in FIG. 4 , a schematic diagram of the structure of the probe radar antenna 8 is shown. The ground penetrating radar antenna 8 is provided with an angle adjustment sheet 10, and the angle adjustment sheet 10 is provided with a plurality of angle adjustment holes. The purpose of setting the angle adjustment sheet and the angle adjustment holes is mainly to adjust the relationship between the probe radar antenna 8 and the antenna support rod 6. The installation angle between them is suitable for the detection of different tunnel side walls.

As shown in FIG. 5, the end of the antenna support rod 6 is also provided with a fastening hole 9, and the antenna support rod 6 is assembled with the ground penetrating radar antenna 8 to form a fastening hole 9 matching the angle adjustment hole. The ground penetrating radar antenna 8 is closely connected with the antenna support rod 6 .

As shown in FIG. 6 , a schematic diagram of the tunnel lining detection work of the present invention is shown. The operator can tow the heavier GPR antenna in a stable, comfortable position and can adjust the direction while accurately detecting the tunnel lining structure. The antenna support pole equipped with the ground penetrating radar antenna can be directly grasped for tunnel lining inspection work to ensure safe operation.

During the actual measurement, according to the direction of measurement, adjust the position of the support rod base 4 on the fixing bar 2, adjust the support rod base 4 to a suitable height, and then adjust the antenna support rod 6 to a suitable direction by rotating the support rod 5, Make the ground penetrating radar antenna 8 close to the tunnel lining. When encountering an obstacle, the antenna support rod 6 can be lowered slightly by rotating the support rod 5. After passing the obstacle, the antenna support rod 6 can be raised again.

The materials such as the antenna support rod 6 of the present invention are all non-metallic materials, which can effectively avoid the interference to the radar signal and make the measurement result more accurate.

The use method of the above-mentioned ground penetrating radar auxiliary device includes the following main steps:

7) Move the GPR trolley to the detection position;

8) Fix the ground penetrating radar antenna on the antenna support rod;

9) Connect the ground penetrating radar antenna with the host using the connecting line;

10) Adjust the position of the support rod base on the fixed strip;

11) Adjust the direction of the ground penetrating radar antenna support rod;

12) Start testing the tunnel lining.

The overall structure of the invention is simple, easy to assemble and transport, convenient to perform measurement, and can be used for measurement work with less manpower, thereby improving work efficiency.

The operator can tow the heavy-weight geological radar antenna in a stable and comfortable position, and can adjust the direction while accurately detecting the tunnel lining structure, ensuring the accuracy of the measurement results.

The operator can directly grasp the antenna support pole equipped with the ground penetrating radar antenna to carry out the tunnel lining inspection work to ensure safe operation.

Although the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, they do not limit the scope of protection of the present invention. Those skilled in the art should understand that on the basis of the technical solutions of the present invention, those skilled in the art do not need to pay creative work. Various modifications or deformations that can be made are still within the protection scope of the present invention.

Claims (7)

1. A ground penetrating radar auxiliary device is characterized by comprising a foldable portable trolley and a working plate; the foldable portable trolley is used for supporting the working plate on the upper part; at least two pairs of fixing strips are arranged on a working plate with a preset area along a required direction, a base is arranged on each pair of fixing strips, a first supporting rod is vertically arranged on each base, a rotating seat capable of rotating 360 degrees in a horizontal plane is arranged at the top of each first supporting rod, a rotating wheel is arranged on each rotating seat, and the axis of a supporting shaft of each rotating wheel is perpendicular to the axis of the first supporting rod; the rotating wheel on be equipped with the race, the race of two rotating wheels supports an antenna boom jointly, the antenna boom can the race in free slip, the tip installation geological radar antenna of antenna boom.

2. The device as claimed in claim 1, wherein the base is provided with a hydraulic driving device, and the bottom of the first supporting rod is connected with the hydraulic driving device.

3. The ground penetrating radar assistant of claim 1, wherein the fixing bar is an "L" -shaped steel plate having a predetermined length, and the fixing bar has a plurality of slits formed in a longitudinal direction.

4. The sod assist apparatus of claim 3 wherein the ends of the strip are secured to the work plate by fasteners.

5. The ground penetrating radar auxiliary device as claimed in claim 1, wherein the ground penetrating radar antenna has an angle adjusting piece on a bottom surface thereof, and the angle adjusting piece has a plurality of angle adjusting holes.

6. The device as claimed in claim 5, wherein the assembly end of the antenna support rod is formed with a fastening hole matching the angle adjustment hole, and the ground penetrating radar antenna is tightly coupled to the antenna support rod by a screw.

7. Use of a georadar auxiliary device according to any one of claims 1 to 6, characterized in that it comprises the following steps:

1) moving the ground penetrating radar trolley to a detection position;

2) fixing a ground penetrating radar antenna on an antenna supporting rod;

3) communicating the ground penetrating radar antenna with the host machine by using a connecting wire;

4) adjusting the position of the supporting rod base on the fixing strip;

5) adjusting the direction of a ground penetrating radar antenna supporting rod;

6) the tunnel lining is tested.

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